Method of manufacturing footwear.



LE BARON (L COLT.-

MErHoD 0.- MANurAcTumNG FoowE/m.

APPLICATIN HLED IAN.5.1915.

Patented Sept'. 12, 1916.

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ltjlifldlllllldllll nii Benoit c. com, or Bitis'ron, niionn ISLAND, -iissiuinon ro NATIONAL innie. RUBBER coivirAnY, A oonronii'rion or niionn isiienn.

METHOD 0F llLANF-ACTURSTG FOOTWEAR.

speciation of Letters' raient.

Patented hoped?, iflil.

Original application filed April 6, 1915, Serial ivo. IGM'. Divided and this application filed January 5,

1916. Seriali No. 70,356.

To all whom t may concern.'

Be itknown that I, Ln BARON C.- COLT, a citizen of the United. States, residing at Bristol, in the county of Bristol, State Ot' Rhode Island, have invented certain new and useful Improvements in the Method of Manufacturing Footwear', of which the following is a full, clear, and exact descrip tion. i

My invention relates to that class of footwear that is made of 'rubber or of rubber combined with fabric or other fibrous materials such as rubber boots and overshoes, rubber sole canvas shoes, tennis shoes, dancing shoes, ete. l

The object of my invention is to provide a method of making footwear which will have all the advantages as to comfort, pleasing shape and durability that pertain to shoes made of leather or canvas, without the disadvantages incident to rubber shoes or rub-4 ber sole canvas shoes as heretofore manufactured.

This application. is a divisional application oi' my prior application filed April 6, 1915, Serial Number 19,604.

ln the ordinary rubber sole tennis shoe or sneaker it will be appreciated that the sole does not project beyond the upper and that the sole is joined to the upper by i'means of what is known in the art as foxing, which is a thin strip oi' rubbcrvextending.from a line on the side of the shoe above the sole down to the point of juncture with the sole where it unites with a similar strip eXtending upwardly from the sole, so that the sole has no projecting welt portion to receive and support the lateral expansion of the upper during the tread, the edge of the sole being iiush with the sides of the upper. nlhis construction also results in a shoe which more or less crude and unsightly in appearance and one that is not adapted for use where more formal dress is required than a. mere neglige costume.

Although the invention may iind its widest application as applied to rubber soled shoes, it may also be applied to an overshoe or a rubber boot, and it will be understood that although the invention is particularly described and illustrated in the drawings as embodied in a rubber soled slice, it is not designed to be restricted thereto but may be embodied in an Overshoe or rub* ber boot, or in fact any article of footwear provided with a rubber sole.

Briefly stated, my invention comprises a method of manufacturing rubber soled shoes in which the tap sole, welt sole, and upper are united in such a way that the necessity of foXing is dispensed with and in which there is no necessity of trimming or buliing the edges of the sole, a treatment which in any event is impracticable because a rough, raw edge is given to the finished article.

Fora clearer understanding oi' my method reference may be had to the following speciiication and to the accompanying drawing forming a part thereof, in which Figure 1 1s a perspective view ot a sh e or punip? made by my method; Fig. 2 is a perspective view of the sole portion thereof, detached; and Figs. 3 and 4 are transverse sectional views through the hall or toe portion ot' a shoe illustrating two modifications in construction.

Referring to the drawing the numeral l indicates the usual upper of a shoe composed of canvas, fabric coated with rubber or even leather.

The numeral 2 stitl'ening sole and 3 the tap sole.

The stiiliening sole may be composed of layers of frictioned fabric 4 on each side of a central. layer or member 5 of hard cur ing rubber compound, such as vulcanizable rubber and fiber Or fiber board, preferably consisting oi what is known in the art as ra g stock such as that resulting from macerated frictioned fabric or rubber shoe clippings oi' trimmings. This element is then out by a die to the iinal shape of thel sole and a strip 6 oi unvuleanized rubber is applied all around the edge oi the stitl'ening element, thus forming a. rounded welt. rlliis welt solo ilus being'made independently of the other parts oi the shoe is then coated with cemeiitalong its margin and is applied indicates the welt or 

